underground but not a fossil

[freebeard]

"Meanwhile I’d like to propose that really the universe is made of 100 percent dark humour. " Sabine Hossenfelder [5:47]

[oil pan 4]

Oh that's savage.

[cRiPpLe_rOoStEr]

Some 20 years ago I used to be more optimistic about hydrogen as a motor fuel, yet I became more skeptical about it around 2004. Biodiesel, ethanol and natural gas (eventually also considering biomethane) sound more realistic to me in a 3rd-world country.

Originally Posted by mort

Hydrogen seeps are believed to be the cause of geological depressions called "Fairy Circles" and there are fairy circles in North Carolina, Brazil, Russia, and Mali.

Where in Brazil? Never heard about it.

[wdb]

Originally Posted by mort

Wells! Wells are being bored all over. Natural Hydrogen seems to be a coming thing.
Before today I hadn't heard that there could be exploitable amounts of hydrogen underground. This week's issue of Science magazine (vol. 379 17 February 2023) has an article: "Hidden Hydrogen" which is a long story about all the people and places that are being examined for natural hydrogen.
-mort

But what about...

[cRiPpLe_rOoStEr]

Originally Posted by wdb

But what about...

Seems to be more of an issue with petroleum than with methane or other gases. Not to mention they're trapped inside rocky caverns (well, sort of) which might have some sort of structural integrity.